双源 CT 在三分支主动脉弓支架的术前应用价值（Ⅰ型主动脉夹层术前评估）  

Preoperational application of dual-source CT in assessment of three branches aortic arch covered stent graft implantation（preoperational evaluation for DeBakey type Ⅰ aortic dissection）

作　　者：赵宏亮[1] 宦怡[1] 郑敏文[1] 李剑[1] 

机构地区：[1]第四军医大学西京医院放射科,陕西西安710032

出　　处：《实用放射学杂志》2015年第6期982-984,993,共4页Journal of Practical Radiology

基　　金：陕西省科技统筹创新工程计划（2013KTCL03-01）;国家十二五科技支撑计划（2011BAI11B20）.

摘　　要：目的：评价双源 CT 在Ⅰ型主动脉夹层（AD）采用三分支主动脉弓部支架术的术前应用价值。方法分析20例拟行三分支主动脉弓支架手术的Ⅰ型 AD 患者术前双源 CT 影像资料,评价双源 CT 术前对手术的指导价值。结果通过双源 CT 检查明确破口位置、大小,测量主动脉弓部近端、远端管径,3支分支血管管径及间距,主要分支血管供血情况及并发症等信息。根据术前CT 诊断信息设计手术方案,13例术前评价条件符合三分支覆膜支架手术并手术成功,7例因适应证不符合而采用其他术式。结论双源 CT 对Ⅰ型 AD 新型三分支主动脉弓部覆膜支架手术术前诊断具有重要意义。Objective To estimate the application value of dual-source CT on preoperational evaluating new type of three branches aortic arch covered stent graft implantation on DeBakey type I aortic dissection.Methods 20 cases with DeBakey type I aortic dissec-tion prepared to performe three branches aortic arch covered stent graft implantation were reviewed,and their CT findings were ana-lyzed in order to evaluate the guiding value for operation.Results The location and size of entries were determined and the diameter of aortic arch and three branchesas well as the intervals of three branches were also measured by dual-source CT.Furthermore, blood-supply for main vessel and complications related with covered stent were further analyzed prior to operation.The surgical pro-tocols were designed according to preoperational CT findings.Among all cases,13 cases were fit for new type of three branches aor-tic arch covered stent graft implantation.While the rest cases （N=7）were adopted other operations due to non-fitted indications. Conclusion Dual-source CT is of significance for preoperational evaluating new type of three branches aortic arch covered stent graft implantation on DeBakey type I aortic dissection.

关 键 词：计算机体层成像 Ⅰ型主动脉夹层 主动脉弓覆膜支架 

分 类 号：R814.42[医药卫生—影像医学与核医学] R543.1[医药卫生—放射医学]